Space Brothers Arc Chapter Count Comparison
How long is each Space Brothers arc? Compare 11 chapter counts from Lunar Accident 10 to Moon Base 72. See full table, visual bars and sources inside.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Promise Arc 18 chapters. | 18 chapters | Ch. 1-18, promise JAXA exams | Kodansha Space Brothers Vol. 1-2 tables: ch. 1-18, 18 chapters |
| Closed Box Arc 25 chapters. | 25 chapters | Ch. 19-43, closed box exam | Kodansha Space Brothers Vol. 3-5 tables: ch. 19-43, 25 chapters |
| Houston Arc 35 chapters. | 35 chapters | Ch. 44-78, Houston moon landing | Kodansha Space Brothers Vol. 5-8 tables: ch. 44-78, 35 chapters |
| Lunar Accident Arc Shortest at 10. | 10 chapters | Ch. 79-88, lunar accident rescue | Kodansha Space Brothers Vol. 9 tables: ch. 79-88, 10 chapters |
| Training Arc 61 chapters merged. | 61 chapters | Ch. 89-149, training rehab | Kodansha Space Brothers Vol. 10-15 tables: ch. 89-149, 61 chapters |
| NEEMO Arc 47 chapters. | 47 chapters | Ch. 150-196, NEEMO backup Jokers | Kodansha Space Brothers Vol. 16-20 tables: ch. 150-196, 47 chapters |
| Campaign Arc 36 chapters. | 36 chapters | Ch. 197-232, cost-cut ISS petition | Kodansha Space Brothers Vol. 21-24 tables: ch. 197-232, 36 chapters |
| Launch Arc 27 chapters. | 27 chapters | Ch. 233-259, launch moon ISS | Kodansha Space Brothers Vol. 25-27 tables: ch. 233-259, 27 chapters |
| Moon Base Arc Joint longest at 72. | 72 chapters | Ch. 260-331, moon base Sharon | Kodansha Space Brothers Vol. 28-35 tables: ch. 260-331, 72 chapters |
| Extended Stay Arc Joint longest at 72. | 72 chapters | Ch. 332-403, extended stay light | Kodansha Space Brothers Vol. 36-43 tables: ch. 332-403, 72 chapters |
| Return Arc 29 chapters. | 29 chapters | Ch. 404-432, return fire rescue | Kodansha Space Brothers Vol. 44-46 tables: ch. 404-432, 29 chapters |
About this converter
Space Brothers splits into descriptive arcs across the Morning run, grouped here into eleven blocks from ch. 1 to ch. 432. The Lunar Accident block runs 10 chapters and stands as shortest here. The Moon Base and Extended Stay blocks each run 72 chapters and tie as longest here. Counts come from Kodansha volume tables for all 46 books with exact mappings. No official arc titles exist, so names stay descriptive. The run closed in 2026, so this table covers the complete story.
How to use it
Pick two arcs and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. Try 1 Moon Base arc against Lunar Accident arc to see the 72 to 10 gap. All rows use Chapters, so the unit stays fixed. Click any table row to load it as Entry A with amount 1.
Kodansha publishes no official arc names, so labels here are descriptive with exact ranges pinned. Volume to chapter mapping is exact through vol. 46. Training merges survival, Pico and buggy runs into 61. Return merges fire, transfer and rescue into 29. English Kodansha books collect the same chapters.
FAQ
Which Space Brothers arc is longest?
The Moon Base and Extended Stay arcs at 72 chapters each.
Which Space Brothers arc is shortest?
The Lunar Accident arc at 10 chapters, ch. 79-88.
Are these official arc names?
No. Kodansha publishes no official arc titles. Names stay descriptive with exact ranges.
Does this cover the full story?
Yes, ch. 1-432. The run closed in 2026.
Sources
- Koyama, C. Space Brothers manga ch. 1-432 (Kodansha Morning)
- Kodansha Space Brothers volume tables: arc ranges ch. 1-432
Last verified: 2026-10-16 · 11 entries
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